Helmet



FIG. 1 is a top left front perspective view of a helmet showing my new design according to a first embodiment;

FIG. 2 is a top left rear perspective view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a top plan view thereof; and

FIG. 8 is a bottom plan view thereof.

FIG. 9 is a top left front perspective view of a helmet according to a second embodiment;

FIG. 10 is a top left rear perspective view thereof;

FIG. 11 is a front elevation view thereof;

FIG. 12 is a rear elevation view thereof;

FIG. 13 is a right side elevation view thereof;

FIG. 14 is a left side elevation view thereof;

FIG. 15 is a top plan view thereof and

FIG. 16 is a bottom plan view thereof.

FIG. 17 is a top left front perspective view of a helmet according to a third embodiment;

FIG. 18 is a top left rear perspective view thereof;

FIG. 19 is a front elevation view thereof;

FIG. 20 is a rear elevation view thereof;

FIG. 21 is a right side elevation view thereof;

FIG. 22 is a left side elevation view thereof;

FIG. 23 is a top plan elevation view thereof; and,

FIG. 24 is a bottom plan elevation view thereof.

Broken lines in FIGS. 1-24 are for environmental purposes and form no part of the claimed design. 

CLAIM I claim the ornamental design for a helmet, as shown and described. 